package com.javachmapi.springbootjsoup.util;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Component;

import java.util.Map;

/**
 * https://blog.csdn.net/jtf8525140/article/details/85070175
 * @Description： create by 宋利军
 * 2020\5\29 00293:43
 */
@Slf4j
@Component
public class SpringUtil implements ApplicationContextAware {
    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if (SpringUtil.applicationContext == null) {
            SpringUtil.applicationContext = applicationContext;
        }
        log.info("---------------------------------------------------------------------");
        log.info("========ApplicationContext配置成功========");
        log.info("---------------------------------------------------------------------");
    }

    //获取applicationContext
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    //通过name获取 Bean.
    public static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }

    //通过class获取Bean.
    public static <T> T getBean(Class<T> clazz) {
        return getApplicationContext().getBean(clazz);
    }

    //通过name,以及Clazz返回指定的Bean
    public static <T> T getBean(String name, Class<T> clazz) {
        return getApplicationContext().getBean(name, clazz);
    }

    //通过Clazz返回指定的Beans
    public static <T> Map<String, T> getBeansByType(Class<T> clazz) {
        return getApplicationContext().getBeansOfType(clazz);
    }

    //通过name，读取属性
    public static String getProperty(String name) {
        Environment environment = applicationContext.getEnvironment();
        return environment.getProperty(name);
    }
}
